Reynolds 520 versus 4130
12-16-06, 09:53 PM
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Reynolds 520 versus 4130
Which is the better steel for a frame: Reynolds 520 or Reynolds 4130? Thanks.
12-17-06, 09:22 AM
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Same alloy
12-17-06, 06:54 PM
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Originally Posted by Falanx
Same alloy
12-17-06, 11:08 PM
#4
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520 is the proprietary designation for a range of butted frame tubes made by Reynolds using a chromium molybdenum steel alloy similar to the AISI 4130 standard.
Other manufacturers also make butted frame tubes of AISI 4130 chromium molybdenum alloy.
The raw material used for Reynolds 520 is essentially 4130, so the difference between 520 and 4130 is that 520 refers to the finished tube sets from Reynolds, while 4130 is simply a steel alloy that other manufacturers use to make their own tube sets competing with Reynolds 520.
Other manufacturers also make butted frame tubes of AISI 4130 chromium molybdenum alloy.
The raw material used for Reynolds 520 is essentially 4130, so the difference between 520 and 4130 is that 520 refers to the finished tube sets from Reynolds, while 4130 is simply a steel alloy that other manufacturers use to make their own tube sets competing with Reynolds 520.
Last edited by Scooper; 12-17-06 at 11:29 PM.
12-18-06, 02:43 AM
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Kleenex vs. tissue-paper
CocaCola vs. soda
Gilette vs. razor
Corvette vs. sportscar
Godzilla vs. monster
CocaCola vs. soda
Gilette vs. razor
Corvette vs. sportscar
Godzilla vs. monster
12-18-06, 12:23 PM
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Originally Posted by Scooper
520 is the proprietary designation for a range of butted frame tubes made by Reynolds using a chromium molybdenum steel alloy similar to the AISI 4130 standard.
Other manufacturers also make butted frame tubes of AISI 4130 chromium molybdenum alloy.
The raw material used for Reynolds 520 is essentially 4130, so the difference between 520 and 4130 is that 520 refers to the finished tube sets from Reynolds, while 4130 is simply a steel alloy that other manufacturers use to make their own tube sets competing with Reynolds 520.
Other manufacturers also make butted frame tubes of AISI 4130 chromium molybdenum alloy.
The raw material used for Reynolds 520 is essentially 4130, so the difference between 520 and 4130 is that 520 refers to the finished tube sets from Reynolds, while 4130 is simply a steel alloy that other manufacturers use to make their own tube sets competing with Reynolds 520.
Here's a quick inside tip for people wondering about exotic, custom compositions of steel. They don't exist. Unless you go to a welding filler rod manufacturer like ESAB, well, infact, only ESAB really, or have a custom 100lb heat made in a research department's electric melting facility, you won't get a 200 tonne steel mill to make you a damned thing that isn't an internationally accepted, standardised steel. They do this for various reasons:
1.) No-one but you wants it
2.) It's not a standardised steel, so no-one has any idea how to heat-treat it (They like to work from fifty year old Jominy tables). So no-one but you wants it
3.) It's mechincal properties, fracture behaviour and - most important to contruction - welding behaviour are unknown so no-one but you wants it.
See a pattern?
Even the brand new Reynolds 953 is in fact disguised Carpenter Custom 455, which is a thirty-year old standard precipitation hardenable 455-grade stainless steel.
12-18-06, 05:15 PM
#7
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Originally Posted by Falanx
Not just similar, but actually 4130.
12-18-06, 05:28 PM
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Originally Posted by Falanx
Not just similar, but actually 4130.
Here's a quick inside tip for people wondering about exotic, custom compositions of steel. They don't exist. Unless you go to a welding filler rod manufacturer like ESAB, well, infact, only ESAB really, or have a custom 100lb heat made in a research department's electric melting facility, you won't get a 200 tonne steel mill to make you a damned thing that isn't an internationally accepted, standardised steel. They do this for various reasons:
1.) No-one but you wants it
2.) It's not a standardised steel, so no-one has any idea how to heat-treat it (They like to work from fifty year old Jominy tables). So no-one but you wants it
3.) It's mechincal properties, fracture behaviour and - most important to contruction - welding behaviour are unknown so no-one but you wants it.
See a pattern?
Even the brand new Reynolds 953 is in fact disguised Carpenter Custom 455, which is a thirty-year old standard precipitation hardenable 455-grade stainless steel.
Here's a quick inside tip for people wondering about exotic, custom compositions of steel. They don't exist. Unless you go to a welding filler rod manufacturer like ESAB, well, infact, only ESAB really, or have a custom 100lb heat made in a research department's electric melting facility, you won't get a 200 tonne steel mill to make you a damned thing that isn't an internationally accepted, standardised steel. They do this for various reasons:
1.) No-one but you wants it
2.) It's not a standardised steel, so no-one has any idea how to heat-treat it (They like to work from fifty year old Jominy tables). So no-one but you wants it
3.) It's mechincal properties, fracture behaviour and - most important to contruction - welding behaviour are unknown so no-one but you wants it.
See a pattern?
Even the brand new Reynolds 953 is in fact disguised Carpenter Custom 455, which is a thirty-year old standard precipitation hardenable 455-grade stainless steel.
12-18-06, 06:09 PM
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Thanks for the education, Falanx.
12-18-06, 07:59 PM
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<Chief Wiggum voice>That's some nice thinking, there, Falanx</Chief Wiggum voice>
Wish I knew things like this too!!
Wish I knew things like this too!!
12-18-06, 09:42 PM
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Prefers Cicero
Originally Posted by vinnydelnegro
what the hell?! i wish i knew stuff.
Originally Posted by Falanx
Studied materials engineering at Birmingham University, to BEng. Followed up with a MPhil centred on oxide defects in Ductile Iron. Specialises in ferrous metallurgy, casting technology,
08-14-12, 08:42 AM
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https://www.brightspoke.com/c/underst...materials.html
08-14-12, 09:06 AM
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In terms of overall tensile strength, here is the order from strongest to weakest of common bike tubing steels.
1. Heat-treated air hardened steel
(Reynolds 853, Columbus Foco, TrueTemper OXPlatinum)*
2. Heat-treated CrMo(Tange Prestige HT, TrueTemper Verus HT Reynolds 725)
3. Cold-drawn air hardened steel
(Reynolds 631)*
4. Cold-drawn 4130 CrMo(Reynolds 525, TrueTemper Verus, Tange Prestige/Infinity)
5. High tensile steel(cheap dept. store bikes, cheaper bike shop bikes)
* Air-hardened steels actually gain strength in the weld area after welding, but not along the whole tube.
1. Heat-treated air hardened steel
(Reynolds 853, Columbus Foco, TrueTemper OXPlatinum)*
2. Heat-treated CrMo(Tange Prestige HT, TrueTemper Verus HT Reynolds 725)
3. Cold-drawn air hardened steel
(Reynolds 631)*
4. Cold-drawn 4130 CrMo(Reynolds 525, TrueTemper Verus, Tange Prestige/Infinity)
5. High tensile steel(cheap dept. store bikes, cheaper bike shop bikes)
* Air-hardened steels actually gain strength in the weld area after welding, but not along the whole tube.
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When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
08-14-12, 11:47 AM
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Frames....frames....
08-14-12, 12:52 PM
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